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Generally, when using ssh -vT git@github.com, it would show as below:
[dennis@localhost ~]$ ssh -vT git@github.com
OpenSSH_6.1p1, OpenSSL 1.0.1e-fips 11 Feb 2013
debug1: Reading configuration">
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Generally, when using ssh -vT git@github.com, it would show as below:
[dennis@localhost ~]$ ssh -vT git@github.com
OpenSSH_6.1p1, OpenSSL 1.0.1e-fips 11 Feb 2013
debug1: Reading configuration">
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Generally, when using ssh -vT git@github.com, it would show as below:
[dennis@localhost ~]$ ssh -vT git@github.com
OpenSSH_6.1p1, OpenSSL 1.0.1e-fips 11 Feb 2013
debug1: Reading configuration">
  
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      how to do git push under vpn
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        <h3 id="Analysis"><a href="#Analysis" class="headerlink" title="Analysis"></a>Analysis</h3><ol>
<li><p>Generally, when using <code>ssh -vT git@github.com</code>, it would show as below:</p>
<pre><code>[dennis@localhost ~]$ ssh -vT git@github.com
OpenSSH_6.1p1, OpenSSL 1.0.1e-fips 11 Feb 2013
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 50: Applying options for *
debug1: Connecting to github.com [192.30.252.129] port 22.
debug1: Connection established.
debug1: identity file /home/dennis/.ssh/id_rsa type 1
debug1: identity file /home/dennis/.ssh/id_rsa-cert type -1
debug1: identity file /home/dennis/.ssh/id_dsa type -1
debug1: identity file /home/dennis/.ssh/id_dsa-cert type -1
debug1: identity file /home/dennis/.ssh/id_ecdsa type -1
debug1: identity file /home/dennis/.ssh/id_ecdsa-cert type -1
debug1: Remote protocol version 2.0, remote software version libssh-0.6.0
debug1: no match: libssh-0.6.0
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.1
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server-&gt;client aes128-ctr hmac-sha1 none
debug1: kex: client-&gt;server aes128-ctr hmac-sha1 none
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: RSA xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx
debug1: Host &apos;github.com&apos; is known and matches the RSA host key.
debug1: Found key in /home/dennis/.ssh/known_hosts:1
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /home/dennis/.ssh/id_rsa
debug1: Server accepts key: pkalg ssh-rsa blen 279
debug1: Authentication succeeded (publickey).
Authenticated to github.com ([192.30.252.129]:22).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LC_MONETARY = en_HK.utf8
debug1: Sending env LC_NUMERIC = en_HK.utf8
debug1: Sending env XMODIFIERS = @im=ibus
debug1: Sending env LANG = en_GB.utf8
debug1: Sending env LC_MEASUREMENT = en_HK.utf8
debug1: Sending env LC_TIME = en_HK.utf8
Hi matrix207! You&apos;ve successfully authenticated, but GitHub does not provide shell access.
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 2832, received 1816 bytes, in 1.5 seconds
Bytes per second: sent 1950.6, received 1250.8
debug1: Exit status 1
[dennis@localhost ~]$ 
</code></pre></li>
<li><p>But when using VPN, it show as below:</p>
<pre><code>[dennis@localhost ~]$ ssh -vT git@github.com
OpenSSH_6.1p1, OpenSSL 1.0.1e-fips 11 Feb 2013
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 50: Applying options for *
debug1: Connecting to github.com [192.30.252.128] port 22.
debug1: connect to address 192.30.252.128 port 22: No route to host
ssh: connect to host github.com port 22: No route to host
</code></pre></li>
<li><p>Reason of the problem is that, your vpn setup routing all your traffic over<br>the VPN, you can update your routing table to route traffic to github back<br>over your ethernet interface rather than the VPN</p>
</li>
<li><p>Not run VPN</p>
<pre><code>[dennis@localhost ~]$ route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         192.168.1.1     0.0.0.0         UG    0      0        0 wlan0
192.168.1.0     *               255.255.255.0   U     9      0        0 wlan0
192.168.122.0   *               255.255.255.0   U     0      0        0 virbr0
[dennis@localhost ~]$ 

[dennis@localhost ~]$ ifconfig
lo: flags=73&lt;UP,LOOPBACK,RUNNING&gt;  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10&lt;host&gt;
        loop  txqueuelen 0  (Local Loopback)
        RX packets 9114  bytes 4451106 (4.2 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 9114  bytes 4451106 (4.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p1p2: flags=4099&lt;UP,BROADCAST,MULTICAST&gt;  mtu 1500
        ether XX:XX:XX:XX:XX:XX  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4163&lt;UP,BROADCAST,RUNNING,MULTICAST&gt;  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:f3:fa:32  txqueuelen 0  (Ethernet)
        RX packets 118  bytes 19982 (19.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 30  bytes 4505 (4.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vnet0: flags=4163&lt;UP,BROADCAST,RUNNING,MULTICAST&gt;  mtu 1500
        inet6 fe80::fc54:ff:fedb:760f  prefixlen 64  scopeid 0x20&lt;link&gt;
        ether fe:54:00:db:76:0f  txqueuelen 500  (Ethernet)
        RX packets 118  bytes 21646 (21.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6974  bytes 365825 (357.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan0: flags=4163&lt;UP,BROADCAST,RUNNING,MULTICAST&gt;  mtu 1500
        inet 192.168.1.100  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::c617:feff:fec3:892d  prefixlen 64  scopeid 0x20&lt;link&gt;
        ether XX:XX:XX:XX:XX:XX  txqueuelen 1000  (Ethernet)
        RX packets 39375  bytes 25884803 (24.6 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 46628  bytes 7804313 (7.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
</code></pre></li>
<li><p>Using VPN</p>
<pre><code>[dennis@localhost ~]$ route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         *               0.0.0.0         U     0      0        0 ppp0
10.0.4.4        *               255.255.255.255 UH    0      0        0 ppp0
192.168.1.0     *               255.255.255.0   U     9      0        0 wlan0
192.168.122.0   *               255.255.255.0   U     0      0        0 virbr0
199.119.206.177 192.168.1.1     255.255.255.255 UGH   0      0        0 wlan0
199.119.206.177 192.168.1.1     255.255.255.255 UGH   0      0        0 wlan0

[dennis@localhost ~]$ ifconfig
...
ppp0: flags=4305&lt;UP,POINTOPOINT,RUNNING,NOARP,MULTICAST&gt;  mtu 1400
        inet 10.0.4.123  netmask 255.255.255.255  destination 10.0.4.4
        ppp  txqueuelen 3  (Point-to-Point Protocol)
        RX packets 9  bytes 114 (114.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 11  bytes 176 (176.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
...
</code></pre></li>
<li><p>get ip from ping github</p>
<pre><code>[dennis@localhost ~]$ ping github.com
PING github.com (192.30.252.129) 56(84) bytes of data.
</code></pre></li>
<li><p>routing tables????(<strong>NOTICE</strong>: this section is unfinished.)</p>
<pre><code>[dennis@localhost ~]$ su -c &apos;route add 192.30.252.129 wlan0&apos;
Password: 
[dennis@localhost ~]$ route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         *               0.0.0.0         U     0      0        0 ppp0
10.0.4.4        *               255.255.255.255 UH    0      0        0 ppp0
ip1d-lb3-prd.ia *               255.255.255.255 UH    0      0        0 wlan0
192.168.1.0     *               255.255.255.0   U     9      0        0 wlan0
192.168.122.0   *               255.255.255.0   U     0      0        0 virbr0
199.119.206.177 192.168.1.1     255.255.255.255 UGH   0      0        0 wlan0
199.119.206.177 192.168.1.1     255.255.255.255 UGH   0      0        0 wlan0

[dennis@localhost ~]$ su -c &apos;route add  192.30.252.129  gw 192.168.1.1&apos;
</code></pre></li>
<li><p><strong><em>CONTINUE</em></strong></p>
</li>
</ol>
<h3 id="Reference"><a href="#Reference" class="headerlink" title="Reference"></a>Reference</h3><ul>
<li><a href="http://stackoverflow.com/questions/757432/git-push-pull-times-out/757462#757462" target="_blank" rel="external">git push/pull times out</a></li>
<li><a href="https://help.github.com/articles/using-ssh-over-the-https-port" target="_blank" rel="external">Using SSH over the HTTPS port</a></li>
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